B32B2307/7166

Water-soluble polyvinyl alcohol film, related methods, and related articles
11193092 · 2021-12-07 · ·

Disclosed herein are water-soluble films including a polyvinyl alcohol (PVOH) resin When the PVOH copolymer are selected with regard to various criteria related to physical and chemical film properties, the resulting water-soluble film formed from the PVOH resin blend exhibits maintained film stiffness, and pouch tautness when in contact with liquid pouch contents, maintain acceptable clarity properties, and/or demonstrates acceptable band release without impairing the ultimate solubility of the water-soluble film.

Biodegradable multi-layer film

A multi-layer polymer film comprising at least one middle layer A, the polymeric constituents of which are soluble in aqueous solution, and in each case at least one substantially water-impermeable covering layer B, C arranged above and below the at least one middle layer A, wherein the layers A, B and C independently of each other in each case comprise at least one thermoplastic polymer and at least one of the covering layers B and C comprises at least one polyhydroxyalkanoate is presented and described. Processes for the production of the multi-layer polymer film according to the invention and its use for the production of molded parts, films or bags are furthermore presented and described.

WATER-DISPERSIBLE PAPER
20220178080 · 2022-06-09 ·

An object is to provide a water-dispersible paper that exhibits excellent dispersibility in water. As a solution, a water-dispersible paper is provided, which has: a base paper that has a bulky layer containing 10% by weight or higher of a softwood pulp with a lumen width (l) to fiber diameter (D) ratio (l/D) of 0.60 or lower on average; and a water-soluble polymer impregnated into the base paper.

Films including a water-soluble layer and a vapor-deposited organic coating

Films including a water-soluble layer and a vapor-deposited organic coating are disclosed. The films can optionally further include a vapor-deposited inorganic layer. The films exhibit enhanced barrier properties.

METHOD FOR PRODUCING A SHEET-FORM ACTIVE INGREDIENT CARRIER, AND ACTIVE INGREDIENT CARRIER
20230265364 · 2023-08-24 · ·

A method for producing a sheet-form active ingredient carrier containing at least one water-soluble active ingredient which is stored in manufacturer-dried state and is soluble and activatable by addition of water. According to the method, the at least one active ingredient as a scatterable or pourable powder is scattered onto an inner nonwoven composed of at least partially water-soluble material and subsequently a firm assembly is produced therefrom by fusing. The assembly produced from the inner nonwoven and from the at least one active ingredient scattered on as scatter powder is positioned as a core ply between outer nonwovens, applied on both sides, composed of at least partially water-soluble material. A sheet-form active ingredient carrier having an inner layer which carries the at least one active ingredient and which is covered on both sides by textile layers composed of at least partially water-soluble outer nonwovens is also provided.

MECHANICALLY RECYCLABLE BARRIER LAMINATES FOR MAKING FLEXIBLE PACKAGING AND METHODS OF RECYCLING FLEXIBLE PACKAGES FORMED OF RECYCLABLE BARRIER LAMINATES
20220134719 · 2022-05-05 ·

Disclosed are recyclable flexible package and a method of recycling such packages. The flexible package includes a hollow body defining an interior chamber for holding an oxygen sensitive product. The body is formed of a laminated film formed of two layers of a single polymer material, e.g., polyethylene, and at least one interposed barrier layer, e.g., polyvinyl alcohol, that is resistant to the passage of oxygen therethrough and which is water-soluble. The single polymer constitutes at least 95% by weight of the laminated film, whereupon the package is suitable for recycling without requiring separation of the materials thereof by shredding the laminated film and subjecting those pieces to an aqueous wash to dissolve the barrier layer.

WATER-SOLUBLE COATINGS FOR SUBSTRATE SURFACES
20220127488 · 2022-04-28 ·

Disclosed herein are coating compositions and/or coatings comprising a water-soluble resin mixture comprising a polyvinyl alcohol (PVOH) and a polyacrylic acid (PAA), and further comprising a colorant and/or an aversive agent, surfaces of substrates coated with the compositions, and methods of making and using the same.

MULTILAYER STRUCTURE, METHOD OF PRODUCING THE SAME, AND PACKAGING CONTAINER

The present invention relates to a multilayer structure including a starch layer (A), an adhesive layer (B), and a base material layer (C) in the order mentioned. In this multilayer structure, a material constituting the starch layer (A) comprises a starch and water; a material constituting the adhesive layer (B) comprises a thermoplastic resin having a density of 0.920 g/cm.sup.3 or lower and has an acid value of 0.3 mgKOH/g or higher; and the base material layer (C) is a layer having a tensile elastic modulus of 100 MPa or higher.

EQUIPMENT AND METHOD FOR LAYING A FILM ON A PLATE-SHAPED PART HOLDER
20230241877 · 2023-08-03 ·

The invention relates to an equipment having an upstream holder for a supply reel carrying a continuous ribbon, a portion of which is suitable for forming a film intended to cover a support plate, a downstream holder, an assembly station having a base comprising having a first platen, an actuator with a movable part carrying a second platen, the second platen or the first platen being adapted to receive a support plate, wherein the second platen is adapted to cooperate with the first platen to form a tooling capable of contacting the film and the support plate when the portion of the ribbon forming the film is located between the second platen and the first platen, facing the support plate.

IMAGE RECORDING SHEET, IMAGE-DECORATED BODY, AND IMAGE-DECORATED BODY MANUFACTURING METHOD
20220118791 · 2022-04-21 ·

An image-decorated sheet including: an image recording sheet; and an image layer formed on an image receiving surface of the image recording sheet with toner using an image forming apparatus, in which the image layer is transferred to a body to be decorated to decorate the body to be decorated, an image-decorated body on which an image is formed by the image-decorated sheet, and an image-decorated body manufacturing method.